Aluminum strip with the volume of trimming machine as a part of the processing of aluminum strip for the aluminum strip according to user requirements sub-roll, and cut cut different specifications strip equipment. Sub-roll trimming machine tension ring instability or tension gradient stability, will make the cut product appears wrong, loose and end face "tower", "bird's nest" phenomenon, the inverter control accuracy, the level of stability, Which directly affects the quality and appearance of strip products. Therefore, when selecting the model, our main drive system adopts the Goodrive800 series products of INVT Company, and uses Goodrive800's high speed accuracy, high torque response and accuracy to ensure the product quality.